From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id BDCD5C433DB for ; Tue, 30 Mar 2021 11:58:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8180561969 for ; Tue, 30 Mar 2021 11:58:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231782AbhC3L6J (ORCPT ); Tue, 30 Mar 2021 07:58:09 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:54294 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229633AbhC3L5r (ORCPT ); Tue, 30 Mar 2021 07:57:47 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1617105462; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=m93QwClR/QQ/X5ttq3tlNUz41kmgq8XL8fOvgWl28V0=; b=WhLxXk2W9755rt2m15OwQ0eVrJjCmtvw1bL83f/Sd96HR8UAegNsnfGcVjojkMDSuD8wo4 pmea7Hb3lg9h6mKlVYnU8db+M5HRnw02kbJxw6gsupht5AkTgwV0jWnvkBodPxTgtvUUnY p3Ctl7ZA166u0w8pGkyg0RVVnyzvGS0= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-132-bgkqAdkVNY296efGuno-zw-1; Tue, 30 Mar 2021 07:57:40 -0400 X-MC-Unique: bgkqAdkVNY296efGuno-zw-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 76FBF1009E29; Tue, 30 Mar 2021 11:57:39 +0000 (UTC) Received: from gondolin (ovpn-113-155.ams2.redhat.com [10.36.113.155]) by smtp.corp.redhat.com (Postfix) with ESMTP id E68C06085A; Tue, 30 Mar 2021 11:57:34 +0000 (UTC) Date: Tue, 30 Mar 2021 13:57:32 +0200 From: Cornelia Huck To: Pierre Morel Cc: kvm@vger.kernel.org, frankja@linux.ibm.com, david@redhat.com, thuth@redhat.com, imbrenda@linux.ibm.com Subject: Re: [kvm-unit-tests PATCH v2 4/8] s390x: lib: css: separate wait for IRQ and check I/O completion Message-ID: <20210330135732.0b367536.cohuck@redhat.com> In-Reply-To: <1616665147-32084-5-git-send-email-pmorel@linux.ibm.com> References: <1616665147-32084-1-git-send-email-pmorel@linux.ibm.com> <1616665147-32084-5-git-send-email-pmorel@linux.ibm.com> Organization: Red Hat GmbH MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org On Thu, 25 Mar 2021 10:39:03 +0100 Pierre Morel wrote: > We will may want to check the result of an I/O without waiting > for an interrupt. > For example because we do not handle interrupt. It's more because we may poll the subchannel state without enabling I/O interrupts, no? > Let's separate waiting for interrupt and the I/O complretion check. > > Signed-off-by: Pierre Morel > --- > lib/s390x/css.h | 1 + > lib/s390x/css_lib.c | 13 ++++++++++--- > 2 files changed, 11 insertions(+), 3 deletions(-) Reviewed-by: Cornelia Huck